YNP bandwidth controversy

I have to be accessable, at all times. When we were in Tx and Az the phone died. Couldn't send email but could get it. I got the email to contact immediately and used Sister In Laws phone to get back to them. Some places cannot get Verizon or AT&T but some small local company. Supposedly I can roam off anybody's towere and no extra charges. I'm not giving it up but some local operators don't like cooperating. The Tower should all be owned by FCC or someone and the Compnaies roam from them on either of the two services. That was the way it was intended and worked until Verizon bought all the competition and AT&T becale a global AT&T and nobody wanted to let anyone roam off their towers that was not a subscriber. FCC should serve the public interest and put a stop to this. It would take a tremendous bite out of the cost of cell phone useage, especially, for travelers. I haven't bu hay have to put an antanna and good booster on MH. ..or find and old 3 watt bag phone and activate it on someone's service.